diff --git a/.hgignore b/.hgignore
index 62bc580ea1..d65f155916 100644
--- a/.hgignore
+++ b/.hgignore
@@ -98,7 +98,7 @@
 ^tools/firmware/.*\.bin$
 ^tools/firmware/.*\.sym$
 ^tools/firmware/.*bios/.*bios.*\.txt$
-^tools/firmware/acpi/acpigen$
+^tools/firmware/hvmloader/acpi/acpigen$
 ^tools/firmware/hvmloader/hvmloader$
 ^tools/firmware/hvmloader/roms\.h$
 ^tools/firmware/rombios/BIOS-bochs-[^/]*$